Crank-casing for internal-combustion engines.



L. W. WTRY. CRANK CASING FOR INTERNAL COMBUSTION ENGINES. APPucATloN FILED 1uLY19,1915.

L mmww, Patented Apr. 25,1916.

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L. W. WITRY.

CRANK cAslNG FOR INTERNAL coNlusTloN ENGINES.

APPLICATION FILED JULY 19. 19l5- Wig.. Q51

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witnesses Louis W. WITnY, or WATERLOO, IOWA, AssreNoR'To WATERLOO oAsoLrNn ENGINE COMPANY, or WATERLOO, IOWA.

Specification of Letters Patent.

Patented Apr. 25, 19016.

Application sied July 19, 1915. serial No. 40,681.

To all whom z' mag/concern:

Be it known that I, Louis W. WITRY, la citizen of the United States of America, and a resident of Waterloo, Blackhawk county, Iowa, have inventedcertain new and useful improvements in Crank-Casings for Internal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in crank-casings for engine crank-shafts, and the object of my improvement is to supply a sectional casing for this purpose which shall not only be of a compact and strong form, but whose parts may be assembled and disassembled with ease. rlhis object I have achieved by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of my improved crank-casing as operatively connected to the cylinder of an internal-combustion engine, the latter only being shown in vertical longitudinal axial section, while part of said crank-casing is shown broken away. Fig. 2 is an upper plan view of said crank-casing, with the forward cover and oil-chute removed, while Fig. 3 is an elevation of the forward part of the main casting or body of the casing, with said front cover removed.

Similar numerals of reference denote corresponding parts throughout the several views.

The main or body part 1 of the crankcasing is approximately rectangular in form, with its front :face inclined downwardly from above rearwardly. This front face has a large rectangular opening adapted to be covered by an arch-shaped hollow cover or closure 4, the latter detachably secured by means of screws 5. Both the parts 1 and 4 have alined shaft-bearings 3 at the middle parts of their sides to receive a crank-shaft with the cranks located within thei casing.

The numeral 2 denotes orificed bearingseats in opposite walls of the body part 1 located above and a little to the rear of the crank-shaft bearings 3, and used to seat a cam-shaft. The body part 1 has an integral rectangular hollow oil-reservoir in its lower part and in communication with its interior. The cylinder 15 of an internal-combustion engine may have its open end bolted to the rear wall of the body part 1, so as to communicate with a registering opening in said rear wall to pass the pitman or piston-rod of the engine thereinto to connect with the crank on the shaft therein.

Referring now to said Fig. 1, the numeral 7 denotes an oil-chute mounted on the removable closure 4 and extending upwardly therefrom to have its open upper end closed by a detachable cap-piece 9. The cap-piece 1s secured by means of a bolt 11 passed through a cross-bar l2 within said oil-chute and extending upwardly through an orifice 1n the cap-piece to be secured by a thumbnut 10. The chute is secured to said closure detachably by means of screws 8, and contains a sieve 13 adapted to strain oil poured into the chute when the cap 9 is removed. Thence the oil finds its way down into the reservoir 14 on the body-part 1.

The closure 4 as also the chute 7 are conveniently located for ready access when the engine is mounted upon a tractor or other vehicle, and can be quickly assembled or secured again in place without disturbing any of the mechanism of the engine, or requiring the removal of the whole casing.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. A crank-casing, comprising a hollow body open at its rear end to communicate with an engine-cylinder, and having a front end both downwardly and rearwardly inclined at a relatively small angle to the vertical, said front end having a relatively large opening, an arch-shaped closure removably mounted over said front opening, said hollow body and said closure having in their opposite side-walls registering half bearings for a shaft, said closure having an opening, and a hollow chute in communication detachably with the front opening in said hollow body by way of said closure and its front opening, said hollow body having its lower part formed into a depending reservoir for lubricant received from said chute.

l2. A crank-casing, comprising a hollow body with openings at front and rear ends, a closure removably secured over the front opening and having an upwardly-directed tubular` part with open top, a cover removably secured upon the open top, and straining-means mounted across the hollow of said tubular part.

3. A crank-casing, comprising a hollow body with openings at front and rear ends, low body being inclined downwardly and 13 an olpji/foedwclos'ure removably securedoyer ixjearwupdlytogetllen. with`l said closure to the from; opi'gnpwrdly'djrctdufailiuirte 'r'iqval f the @login-e. bularspout mountedoverand o1nniuni`cti`ng Sigr'iedv 't Wterloo, Iowa, this 30th day 5 with the orifice :insz'tidi losulepthe bottom of of J une, 1915. f ,y

the said hollow body being depressed below LOUIS W. WITRY. tlylelevell. ofmsgid closurgewand spout, and a Witnesses: cover detaoh'ably mounted 'upon' the open W` IL BnUNN, end of said spout, the front ed "o'f sd hol- G. C. K'DY. Copies of 'thfrs pft't m'yb'b'tn'd f' 'v'ffes each, by addressingy t'l Ci'iss'ioer of Patents',

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